i-adjective
meaty; juicy (of meat)
Colloquial adjective describing meat that is thick, substantial, and satisfyingly juicy. Often used positively for steaks, hamburgers, etc.
このハンバーグはすごく肉肉しくて美味しい。
This hamburger steak is really meaty and delicious.
肉肉しいステーキが食べたい。
I want to eat a thick, juicy steak.